CA1043549A - Apparatus with flexible pressurizing sheet and related method for processing cloth, especially knitted cloth - Google Patents
Apparatus with flexible pressurizing sheet and related method for processing cloth, especially knitted clothInfo
- Publication number
- CA1043549A CA1043549A CA241,329A CA241329A CA1043549A CA 1043549 A CA1043549 A CA 1043549A CA 241329 A CA241329 A CA 241329A CA 1043549 A CA1043549 A CA 1043549A
- Authority
- CA
- Canada
- Prior art keywords
- drum
- arc
- inlet roller
- cloth web
- blanket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C21/00—Shrinking by compressing
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
APPARATUS WITH FLEXIBLE PRESSURIZING SHEET
AND RELATED METHOD FOR PROCESSING CLOTH, ESPECIALLY KNITTED CLOTH
Herman J. Joy ABSTRACT OF THE DISCLOSURE
A cloth web preshrinking apparatus is disclosed including an inlet roller, a heated drum and a blanket (usually a felt type end-less blanket) running on the inlet roller and thence onto an outer face of the drum. A first initially outer surface of the blanket is stretched and then compacted. A cloth web is introduced into fric-tional contact onto the first surface of the blanket as it is stretched and the cloth web is then preshrunk as the first surface is compacted.
A smooth strong flexible sheet (in the form of an apron or endless ribbon at least as wide as the cloth web) presses the cloth web onto the inlet roller and thereafter the sheet extends in contact with the cloth web on an upper face thereof onto the outer face of the drum.
AND RELATED METHOD FOR PROCESSING CLOTH, ESPECIALLY KNITTED CLOTH
Herman J. Joy ABSTRACT OF THE DISCLOSURE
A cloth web preshrinking apparatus is disclosed including an inlet roller, a heated drum and a blanket (usually a felt type end-less blanket) running on the inlet roller and thence onto an outer face of the drum. A first initially outer surface of the blanket is stretched and then compacted. A cloth web is introduced into fric-tional contact onto the first surface of the blanket as it is stretched and the cloth web is then preshrunk as the first surface is compacted.
A smooth strong flexible sheet (in the form of an apron or endless ribbon at least as wide as the cloth web) presses the cloth web onto the inlet roller and thereafter the sheet extends in contact with the cloth web on an upper face thereof onto the outer face of the drum.
Description
BACKGROUND OF INVENTION
This invention relates to a clo~h web preshrinking appara~us of a type including an inlet roller, a heated drum and a blanket run-ning onto the inlet roller and thence against an outer surfac,e of the heated drum.
More particularly this invention relates to preshrinking, .
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stabilizing and/or finishing knitted cloth webs. In knitted cloth, as distinguished from woven cloth, the cloth i5 constxucted in both its lengthwise and widthwise directions by series of interlocked loops formed by continuous yarns or series of continuous yarns. As a result knitted cloth has ~ substantial interdependence of its length and width dimensions which results in a property of being distortable easily. This distortion property has made knitted cloth desirable for many articles of apparel, because of ability of garments made from knitted cloth to conform kinesiologically to bodies and to change their garments shapes in response to body movements of their wearers. However this distortion property, which enhances acceptability of knitted cloth for wearing apparel, presents problems in preshrinking, stabilizing and finishing the knitted cloth webs.
In the type of apparatus for preshrinking, stabilizing and/or finishing a knitted cloth web, as referred to before herein, a blanket (usually a felt endless blanket) is led over an inlet roller thereby having a first (initially outer) surface of the blanket stretched in a zone. Then the inlet roller and the blanket are held firmly against an outer surface of a large diameter heated drum around an arc of which the blanket passes after leaving the in~et roller. In transferring from the inlet roller to the drum, the blanket reverses its curvature so that the first (previously stretched) surface of the blanket changes to an inner contracted surface in a compaction zone.
Because of the distortion property of knitted cloth, there is a tendency for the knitted cloth to loose its preshrinkage or pop out. To prevent such popping out, heated metal s~oes (usually electrically heated steel shoes) 104;~545 have been fitted over the blanket above the input roller and the function of these shoes has been to hold a movable cloth web which is to be preshrunk in close contact with the first stretched outer surface of the blanket as the blanket passes over the inlet roIler.
The cloth web is fed onto the first surface of the blanket where the first surface is stretched in the zone due to curvature of the blanket a~ound the inlet roller and the cloth web is held in contact with this first surface, initially by means of the shoes which are heated to prevent friction or sticking and then by the drum. As the cloth web reaches a point where reversal of curvature of the blanket shortens the stretched condition of the first surface back to normal and beyond to a contracted condition in the compaction zone, the cloth web is compelled to shorten also because the cloth web is in frictional contact with the first surface of the blanket. Thi~ shortening action is a continuous one of microscopic amounts at any instant, but which can typically total 6 inches (15.24 cm.) or more per yard (91.44 cm.) depending on thickness and material of the blanket with which the apparatus is equipped.
The cloth is moist before it reaches and passes under the shoes, so that being soft and somewhat plastic the cloth web contracts readily in frictional contact with the first surface of the blanket. Removal of moisture by means of complete drying of the cloth web, by travel of the cloth web over the heated drum, stabilizes and finishes the cloth web in its contracted or preshrunk stage.
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Difficulties arise in maintaining the heated shoes relative to the inlet roller and the heated drum with the cloth web passing thereunder. The shoes must generally be heated electrically and they, as well as the blanket, are subjected to considerable wear. The shoes inevitably offer resistance to the cloth web passing thereunder, which resistance increases power requirements of the apparatus.
The shoes are mechanically complex and expensive to repair.
Adjustments of the shoes and replacements of the inlet roller are necessary frequently; which adjustments and replacements make operation of the apparatus complicated, thereby increasing operator skill requirements as well as aggrevating proba-bilities of mistakes and presenting inherent operational errors.
It is necessary to change to a lar~er inlet roller as the blanket wears.
STATEMENT OF INVENTION
This invention solves difficulties of the prior art in a useful, ~ovel, unobvious and particularly facile way.
A smooth strong flexible sheet (in the form of an apron or endless ribbon at least as wide as the cloth web) passes the cloth web onto the inlet roller. Thereafter the sheet continues in contact with the upper face of the cloth and the outer face of the drum. Accordingly one object of this invention is to eliminate the heated shoes and thereby save a major portion of their capital, maintenance and adjustment co-~ts.
Another object of this invention is to provide the pressing sheet in either the form of an apron or in the form of an endless C
104;~54~ ' ribbon.
Still anothex ob~ect of this invention i5 to accommodate on a single piece of apparatus preshrinking, stabilizing and finishing cloth in the form of flattened knitted tubes as well as in the form of slip open knitted tubes and warp knitted open webs with selvages.
Still another object of this invention is to preshrink, stabilize and finish woven cloth webs.
In accordance with the inventionin one aspect there is provided an apparatus for processing a cloth web, the apparatus comprising in combination a heated drum having a drum axis, an inlet roller mounted adjacent to the drum and having an axis parallel to the drum axis, a blanket running around an arc of the inlet roller and thence around an arc of the drum in such a manner that a first (initially outer) -surface of the blanket stretches in passing around the arc of the inlet roller and the first surface then contracts as it passes onto the arc of the drum, means for introducing the cloth web in a moistened condition onto the first surface of the blanket with the first surface carrying the cloth web in frictional contact therewith as at least a portion of said stretching and at least a portion of said contracting occurs, the apparatus characterized by a smooth strong flexible sheet held in pressing engagement onto the cloth web on the arc of ; the inlet roller and extending inward of the cloth web onto the arc of the drum, the sheet being a fabric made of resin bonded ~ glass fibers, the fabric coated with polytetrafluoroethylene ; resin.
.
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The invention, in a further aspect, pro~ides a method for compressively preshrinking, stabilizing and finishing a cloth web, the method comprising steps as follows:
bringing the cloth to a moisture content which does not exceed about 40% by weight,.providing a heated drum having a drum axis, providing an inlet roller adjacent to the drum with the inlet roller having an inlet roller axis parallel to the drum axis, running a blanket around an arc of the inlet roller and thence around an arc of the drum in such a manner that a first (initially outer) surface of the blanket stretches in passing around the arc of the inlet roller and the first surface then contracts as it passes onto the arc of the drum, introducing the moist~cloth web onto the first surface of the blanket with the first surface carrying the cloth web in - frictional contact therewith as at least a portion of said stretching and at least a portion of said contracting occurs;
the method characterized by introducing a smooth strong flexible sheet held in pressing engagement onto the cloth web on the arc of the inlet roller and extending inward of the cloth web onto the arc of the drum, and making the sheet of a fabric constituted of resin bonded glass fibers and coated with poly-tetrafluoroethylene resin.
DESCRIPTION OF DRAWINGS
The foregoing and other objects, features and advantages will appear more fully from a detailed description of certain preferred embodiments of the invention which follows and from claims which also follow all viewed in conjunction with drawings, which accompany and form part of this application, wherein same numerical designations refer to like parts throughout and wherein:
.~'' ~043s4s Fig, 1 is a simplified schematic side elevational view of one embodiment of apparatus for processing a cloth web in accordance . with this invention.
Fig. ~ is a simplified view to an enlarged scale depicting a pressing sheet 19 of Fig. 1 in the form of an apron 21 and showing the relationship of the apron 21 to the blanket 11, the inlet roller 12, the drum L5 and the cloth web 18 being processedO
Fig. 3 is a simplified schematic side elev~ional view of another embodiment of apparatus for processing a cloth web in accor-~D dance with this invention.
Fig. 4 is a simplified view to an enlarged scale depicting a pressing sheet 19 of Fig. 3 in the fonm of an endless ribbon 22 and showing the relationship of the endless ribbon 22 to the blanket 11, the inlet rolLer 12, the drum 15 and the c~oth web 18 being pro cessed.
Fig. 5 is a simplified right end view of the embodiment shown in Fig. 4.
FigD 6 is a simplified detail of a prior art electrically heated shoe 17 and its relationship to the blanket ll, the inlet roller 12, the drum 15 and the cloth web 18 being processed.
Fig. 7 is a simplified schematic side elevational view of the embodiment of apparatus shown in Fig. 1 coupled in tandem with a conventional rubber belt compressive preshrinkage unit.
Fig. 8 is a simplified schematic side elevational view of the embodiment of apparatus shown in Fig, 1 coupled in tandem with a con-ventional preshrinkage unit for cloth knitted in tubes.
~ _ 7 104~S4.'3 DETAILED DESCRIPTION
Reference should firstly be made to Fi~. 6 of the drawings which is a simplified detail of a typical prior art arrangement. In the type of apparatus for preshrinking, stabilizing and/or finishing a knitted cloth web, as referred to before herein, a blanket 11 (usually a felt endless blanket) is led over an inlet roller 12 thereby having a first (initially outer) surface 13 of the blanket 11 stretched in a zone 14.
Then the inlet roller 12 and the blanket 11 are held firmly against an outer surface of a large diameter heated drum 15 around an arc of which the blanket 11 passes after leaving the inlet roller 12. In transferring from the inlet roller 12 to the drum 15, the blanket 11 reverses its curvature so that the first (previously stretched) surface 13 of the blanket 11 changes to an inner contracted surface in a compaction zone 16.
Because of the distortion property of knitted cloth., there is a tendency for the knitted cloth to loose its preshrinkage or pop out. To prevent such popping out, heated metal shoes 17 (usually electrically heated steel shoes) have been fitted over the blanket 11 above the input roller 12 and the function of these shoes has been to hold a movable cloth web 18 which is to be preshrunk in close contact with the first stretched outer surface 14 of the blanket 11 as the blanket 11 passes over the inlet roller 12.
The cloth web 18 is fed onto the first surface 13 of the blanket 11 where the first surface 13 is stretched in the ~one 14 due to curvature of the blanket 11 around the inlet roller 12 and the cloth web 18 is held in contact with this first surface 13, initially by means of the shoes 17 which are heated to prevent friction or sticking and then by the drum 15. As the cloth web 18 reaches a point where reversal ~ 7a -:., J
104;~S45 of curvature of the blanket 11 shortens the stretched condition of the first surface back to normal and beyond to a contracted condition in the compaction zone 16, the cloth web 18 is compelled to shorten also because the cloth web 18 is in frictional contact with the first surface 13 of the blanket 11.
This shortening action is a continuous one of microscopic amounts at any instant, but which can typically total 6 inches (15.24 cm.) or more per yard (91.44 cm.) depending on thickness and material of the blanket 11 with which the apparatus is equipped.
The cloth 18 is moist before it reaches and passes under the shoes 17, so that being soft and somewhat plastic the cloth web 18 contracts readily in frictional contact with the first surface 13 of the blanket. Removal of moisture by means of complete drying of the cloth web 18, by travel of the cloth web 18 over the heated drum 15, stabilizes and finishes the cloth web 18 in its contracted or preshrunk stage.
Difficulties arise in maintaining the heated shoes 17 relative to the inlet rol~er 12 and the heated drum 15 with the cloth web 18 passing thereunder. The shoes 17 must generally be heated electrically and they, as well as the blanket 11, are subjected to considerable wear. The shoes 17 inevitably offer resistance to the cloth web 18 passing thereunder, which resistance increases power requirements of the apparatus. The shoes 17 are mechanically complex and expen~ive to repair. Adjustments of the shoes 17 and replace-ments of the inlet roller 12 are necessary frequently; which adjustments ana replacements make operation of the apparatus complicated, thereby increasing operator skill requirements as well as aggravating probabilities of mistakes and presentiny inherent operational errors. It is necessary to change to a larger inlet roller as the blanket ~ears.
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The preferred embodiments of this invention serve to re-place prior art pressing shoes 17 shown in Fig. 6 by a pressing sheet 19 which takes the form of an apron 21 in the embodiment shown in Figs. 1-2 or the form of an endless ribbon 22 in the embodiment shown in Figs. 3-5.
By way of exampleg in the embodiment shown in Figs. 1-2, the cloth web 18 typ;cally may be fed via guide rollers 23 and draw rollers 24 through a moisturizing device 25 wherein the cloth web 18 has its moisture content adJusted by spraying with ste~ and/or water 0 from nozzles 26 and whence the moistened cloth web 18 is conducted and spread by known means (shown typicaLly as rollers 27) to an adjust-able feed roller 28 whence it enters a principal process unit (gene~
rally designated 29) of this invention. The foregoing preliminary ap-paratus is conventional. It is necessary only that moisture content of the cloth web 18 be in a range compatible with compressive pre-shrinking and usually that the cloth web be spread and relaxed pro-perly9 for example in a rail tenter with a feed such as a Marshall &
Williams nip type overfeeder. Variations on the preliminary appara-tus include partial drying from a hot air moisture content typically over hot cans9 delivery of the cloth web 18 from a rubber belt 55 (shown in Fig. 7) or other compressive preshrinkage unit such as one 56 for cloth knitted into tubes (shown in Fig. 8) or from other preliminary apparatus. Also the spreading as well as the relaxing could be attended to before the moisturizing, so long as the cloth web 18 reaches the principal processing unit 29 of this invention with a compatible moisture content, spread and usually relaxed. Woven cloth and warp knitted cloth .~
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are handled easily, but a knitted tube has to be slit and spread or flattened and spread wi~h all of the foregoing being accomplished by known apparatus and techniques.
The blanket ll (typically a felt endle~s blanket~ is led over the inlet roller 12 thereby having the first (initially outer) surface 13 of the blanket 11 stretched in the stretch zone 14. Then the inlet roller 12 and the blanket 11 are held ;n contact against the large diPmeter heated drum 15 around an arc of which the blanket 11 passes after Pea~ing the inlet roller 12. In transferring from the inlet roller 12 to the drum 159 the blanket 11 reverses its curvature so that the first (previously stretched) surface 13 of the blanket 11 changes to an inner contracted surface in a compaction zone 16~ The blanket 11 is very suitably made of woven wool or of needled polyester.
With eLimination of the heated shoes 17, it is feasible to employ blan-kets 11 of synthetic fibers which cannot be used with heated shoes 17 due to the fact that the temperature required (375F. to 450F. or 190.6C. to 232.2C.) would melt and destroy the blanket. However using pressing sheet 19, in the form of an apron 21 or an endless ribbon 22, with a maximum drum temperature of approximately 325F. or 162~8C.
permits safe use of the synthetic blanket~ Additionally such a maxi-mum drum temperature also permits us~ of blankets of other fibrous materials which likewise are longer lasting than wool.
The blanket 11 courses to the inlet roller 12 thence around an arc 31 of the drum 15~ thence via guide rollers 32 around an arc 33 of a heated drum 34 and via guide rollers 35 the blanket is recycled back to the inlet roller 12~
_ 9 _ ;~
lQ4;~54g In the embodiment of Figso 1-2, the processing sheet 19 ls in the form of a pressing apron 21 which is clamped at an outer end 36 outward of the inlet roller 12 relative to the drum 15. Held between an angle iron 37 and a bar 38 (as best seen in Fig. 2) the press~
ing apron 21 extends inward of the cloth web 18 through an area 39 and onto the arc 31 of the d D -15 where it is subJected to a dra~ force by the moving blanket:ll and that drag force presses the apron 21 onto the cloth web 18 over the inlet roller 12 and maintain the apron 21 on the cloth web 18 as the cloth web 18 tr~verses the area 39 and onto the arc 31 of the drum 15. The apron 21 extends onto the arc 31 of the drum 15 to an inner end 40 far enough to develop sufficient drag from the moving cloth web 18 to achieve the pressing force required~ By this expedient compressive preshrinking of the cloth web 18 is main-taineda without pop out and thereafter the cloth web 18 is dried totally in coursing the arc 31 on the drwm 15 and the dried cloth web is con ducted via an outlet roller 41 and guide rollers 42 typically to a plaiter 43 whereby the cloth web 18 is folded for deposition into a cart 44 for transfer to other processing steps or to conversion steps.
The shown plaiter 43 is operated by means of a crank 45. Obviously other means for re~oval and further processing or conversion of the cloth w;ll be apparent to skilled artisans.
AdJustments can include conventional controls and manipula-tions of the cloth web 18 in advance of the principal processing unit 29 of this invention, most particularly by adJustment of the feed roller 28 (as indicated by arrows 46) and also by movement of the inlet roller 12 (as indicated by arrows 47) relative to the dn ~ 15, The outer ~()4;~54~
end 36 of the apron 21 can be held in various posit~ons 48a, 48b, 48c, so that length of the arc 49 of the inlet roller 12 over which the apron 21 presses the cloth web 18 onto the inlet roller 12 can be predetermined. To achieve this adjustable positioning of the outer end 36 of the apron 21, a biased arcuate frame 51 preferably is ~ro-vided with a series of pin holes 52a, 52b, 52c on which pins connected to the angle iron 37 and the bar 38 holding the outer end 36 of the apron 21 can be set.
In the ~bodiment shown in Figs. 3-59 the sheet 19, rather than being in the fonm of an apron 21 as shown in Figs. 1-2, is in a fonm of an endless ribbon 22 which courses around the arc 31 of the drum 15, being driven thereby. The endless ribbon 22 courses outward from the drum 15 past the inlet roller 12 and it passes over a ribbon roller 53 mounted in the vicinity of the inlet roller 12. The ribbon roller 53 has an axis which is parallel to the axis of the inlet roller 12. The ribbon roller 53 axis is translatable axially relative to the adjustable inlet roller axis (as shown by arrows 54) to control slack in the endless ribbon 22 and also to vary incidence of the endless ribbon 22 onto the cloth web 18 on the inlet roller 12. As seen best i~ Fig. 59 the cloth web 18 has a substantially constant width and the endless ribbon 22 has a width at least as wide as that of the c~oth web.
The apron 21 and the endless ribbon 22 are made of fabric constituted of resin bonded glass fibers coated with polytetrafluoroethylene resin.
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Thicknesses in the order of 0.016 inches (0.041 cm.) have proven to be practical. Joining of the endless belt has been achievable by conventional techniques.
It will be understood by skilled artisans that the cloth web may be woven or it may be a warp knitted open web,!a slit knitted tube or a flattened knitted tube. The fibers may also be cellulosic or blends of cellulosic and man made fibers and such man made fibers may be thenmoplastic.
The apparatus for processing cloth in accordance with this invent~ion may be used in tandem advantageously with other compressive preshrinkage apparatus such as a conventional rubber belt compressive preshrinkage unit 55 shown in Fig. 7 which is preceded by a spreader 57 and comprises a heated drum 58, rollers and a moveable thick rubber belt 61. The apparatus for processing cloth in accordance with this invention is shown in Fig. 8 in tandem with a conventional preshrink-age unit for cloth 18a knitted in tubes. In Fig. ~ the knitted tube is spread and steamed in a moisturizing device 25a by means of steam jets 26a and it is the~ flattened and compacted by dual endless r,ubber belts 62 which run ~n rollers 63. After spreading--by rollers-64 the flattened tube is brought to feed roller 28 whence it is processed in accordance with this invention. By this expedient pop out of the knitted tube i~ compensated for and additional preshrinking can be achieved.
It will also be apparent to skilled artlsans that wide de-viations may be made rom the foregoing preferred embodiments, without departing from a main theme of invention set forth in claims which follow.
This invention relates to a clo~h web preshrinking appara~us of a type including an inlet roller, a heated drum and a blanket run-ning onto the inlet roller and thence against an outer surfac,e of the heated drum.
More particularly this invention relates to preshrinking, .
~0~5~
stabilizing and/or finishing knitted cloth webs. In knitted cloth, as distinguished from woven cloth, the cloth i5 constxucted in both its lengthwise and widthwise directions by series of interlocked loops formed by continuous yarns or series of continuous yarns. As a result knitted cloth has ~ substantial interdependence of its length and width dimensions which results in a property of being distortable easily. This distortion property has made knitted cloth desirable for many articles of apparel, because of ability of garments made from knitted cloth to conform kinesiologically to bodies and to change their garments shapes in response to body movements of their wearers. However this distortion property, which enhances acceptability of knitted cloth for wearing apparel, presents problems in preshrinking, stabilizing and finishing the knitted cloth webs.
In the type of apparatus for preshrinking, stabilizing and/or finishing a knitted cloth web, as referred to before herein, a blanket (usually a felt endless blanket) is led over an inlet roller thereby having a first (initially outer) surface of the blanket stretched in a zone. Then the inlet roller and the blanket are held firmly against an outer surface of a large diameter heated drum around an arc of which the blanket passes after leaving the in~et roller. In transferring from the inlet roller to the drum, the blanket reverses its curvature so that the first (previously stretched) surface of the blanket changes to an inner contracted surface in a compaction zone.
Because of the distortion property of knitted cloth, there is a tendency for the knitted cloth to loose its preshrinkage or pop out. To prevent such popping out, heated metal s~oes (usually electrically heated steel shoes) 104;~545 have been fitted over the blanket above the input roller and the function of these shoes has been to hold a movable cloth web which is to be preshrunk in close contact with the first stretched outer surface of the blanket as the blanket passes over the inlet roIler.
The cloth web is fed onto the first surface of the blanket where the first surface is stretched in the zone due to curvature of the blanket a~ound the inlet roller and the cloth web is held in contact with this first surface, initially by means of the shoes which are heated to prevent friction or sticking and then by the drum. As the cloth web reaches a point where reversal of curvature of the blanket shortens the stretched condition of the first surface back to normal and beyond to a contracted condition in the compaction zone, the cloth web is compelled to shorten also because the cloth web is in frictional contact with the first surface of the blanket. Thi~ shortening action is a continuous one of microscopic amounts at any instant, but which can typically total 6 inches (15.24 cm.) or more per yard (91.44 cm.) depending on thickness and material of the blanket with which the apparatus is equipped.
The cloth is moist before it reaches and passes under the shoes, so that being soft and somewhat plastic the cloth web contracts readily in frictional contact with the first surface of the blanket. Removal of moisture by means of complete drying of the cloth web, by travel of the cloth web over the heated drum, stabilizes and finishes the cloth web in its contracted or preshrunk stage.
~. ...
1()4;~S4~
Difficulties arise in maintaining the heated shoes relative to the inlet roller and the heated drum with the cloth web passing thereunder. The shoes must generally be heated electrically and they, as well as the blanket, are subjected to considerable wear. The shoes inevitably offer resistance to the cloth web passing thereunder, which resistance increases power requirements of the apparatus.
The shoes are mechanically complex and expensive to repair.
Adjustments of the shoes and replacements of the inlet roller are necessary frequently; which adjustments and replacements make operation of the apparatus complicated, thereby increasing operator skill requirements as well as aggrevating proba-bilities of mistakes and presenting inherent operational errors.
It is necessary to change to a lar~er inlet roller as the blanket wears.
STATEMENT OF INVENTION
This invention solves difficulties of the prior art in a useful, ~ovel, unobvious and particularly facile way.
A smooth strong flexible sheet (in the form of an apron or endless ribbon at least as wide as the cloth web) passes the cloth web onto the inlet roller. Thereafter the sheet continues in contact with the upper face of the cloth and the outer face of the drum. Accordingly one object of this invention is to eliminate the heated shoes and thereby save a major portion of their capital, maintenance and adjustment co-~ts.
Another object of this invention is to provide the pressing sheet in either the form of an apron or in the form of an endless C
104;~54~ ' ribbon.
Still anothex ob~ect of this invention i5 to accommodate on a single piece of apparatus preshrinking, stabilizing and finishing cloth in the form of flattened knitted tubes as well as in the form of slip open knitted tubes and warp knitted open webs with selvages.
Still another object of this invention is to preshrink, stabilize and finish woven cloth webs.
In accordance with the inventionin one aspect there is provided an apparatus for processing a cloth web, the apparatus comprising in combination a heated drum having a drum axis, an inlet roller mounted adjacent to the drum and having an axis parallel to the drum axis, a blanket running around an arc of the inlet roller and thence around an arc of the drum in such a manner that a first (initially outer) -surface of the blanket stretches in passing around the arc of the inlet roller and the first surface then contracts as it passes onto the arc of the drum, means for introducing the cloth web in a moistened condition onto the first surface of the blanket with the first surface carrying the cloth web in frictional contact therewith as at least a portion of said stretching and at least a portion of said contracting occurs, the apparatus characterized by a smooth strong flexible sheet held in pressing engagement onto the cloth web on the arc of ; the inlet roller and extending inward of the cloth web onto the arc of the drum, the sheet being a fabric made of resin bonded ~ glass fibers, the fabric coated with polytetrafluoroethylene ; resin.
.
~ -5-104;~54S~
The invention, in a further aspect, pro~ides a method for compressively preshrinking, stabilizing and finishing a cloth web, the method comprising steps as follows:
bringing the cloth to a moisture content which does not exceed about 40% by weight,.providing a heated drum having a drum axis, providing an inlet roller adjacent to the drum with the inlet roller having an inlet roller axis parallel to the drum axis, running a blanket around an arc of the inlet roller and thence around an arc of the drum in such a manner that a first (initially outer) surface of the blanket stretches in passing around the arc of the inlet roller and the first surface then contracts as it passes onto the arc of the drum, introducing the moist~cloth web onto the first surface of the blanket with the first surface carrying the cloth web in - frictional contact therewith as at least a portion of said stretching and at least a portion of said contracting occurs;
the method characterized by introducing a smooth strong flexible sheet held in pressing engagement onto the cloth web on the arc of the inlet roller and extending inward of the cloth web onto the arc of the drum, and making the sheet of a fabric constituted of resin bonded glass fibers and coated with poly-tetrafluoroethylene resin.
DESCRIPTION OF DRAWINGS
The foregoing and other objects, features and advantages will appear more fully from a detailed description of certain preferred embodiments of the invention which follows and from claims which also follow all viewed in conjunction with drawings, which accompany and form part of this application, wherein same numerical designations refer to like parts throughout and wherein:
.~'' ~043s4s Fig, 1 is a simplified schematic side elevational view of one embodiment of apparatus for processing a cloth web in accordance . with this invention.
Fig. ~ is a simplified view to an enlarged scale depicting a pressing sheet 19 of Fig. 1 in the form of an apron 21 and showing the relationship of the apron 21 to the blanket 11, the inlet roller 12, the drum L5 and the cloth web 18 being processedO
Fig. 3 is a simplified schematic side elev~ional view of another embodiment of apparatus for processing a cloth web in accor-~D dance with this invention.
Fig. 4 is a simplified view to an enlarged scale depicting a pressing sheet 19 of Fig. 3 in the fonm of an endless ribbon 22 and showing the relationship of the endless ribbon 22 to the blanket 11, the inlet rolLer 12, the drum 15 and the c~oth web 18 being pro cessed.
Fig. 5 is a simplified right end view of the embodiment shown in Fig. 4.
FigD 6 is a simplified detail of a prior art electrically heated shoe 17 and its relationship to the blanket ll, the inlet roller 12, the drum 15 and the cloth web 18 being processed.
Fig. 7 is a simplified schematic side elevational view of the embodiment of apparatus shown in Fig. 1 coupled in tandem with a conventional rubber belt compressive preshrinkage unit.
Fig. 8 is a simplified schematic side elevational view of the embodiment of apparatus shown in Fig, 1 coupled in tandem with a con-ventional preshrinkage unit for cloth knitted in tubes.
~ _ 7 104~S4.'3 DETAILED DESCRIPTION
Reference should firstly be made to Fi~. 6 of the drawings which is a simplified detail of a typical prior art arrangement. In the type of apparatus for preshrinking, stabilizing and/or finishing a knitted cloth web, as referred to before herein, a blanket 11 (usually a felt endless blanket) is led over an inlet roller 12 thereby having a first (initially outer) surface 13 of the blanket 11 stretched in a zone 14.
Then the inlet roller 12 and the blanket 11 are held firmly against an outer surface of a large diameter heated drum 15 around an arc of which the blanket 11 passes after leaving the inlet roller 12. In transferring from the inlet roller 12 to the drum 15, the blanket 11 reverses its curvature so that the first (previously stretched) surface 13 of the blanket 11 changes to an inner contracted surface in a compaction zone 16.
Because of the distortion property of knitted cloth., there is a tendency for the knitted cloth to loose its preshrinkage or pop out. To prevent such popping out, heated metal shoes 17 (usually electrically heated steel shoes) have been fitted over the blanket 11 above the input roller 12 and the function of these shoes has been to hold a movable cloth web 18 which is to be preshrunk in close contact with the first stretched outer surface 14 of the blanket 11 as the blanket 11 passes over the inlet roller 12.
The cloth web 18 is fed onto the first surface 13 of the blanket 11 where the first surface 13 is stretched in the ~one 14 due to curvature of the blanket 11 around the inlet roller 12 and the cloth web 18 is held in contact with this first surface 13, initially by means of the shoes 17 which are heated to prevent friction or sticking and then by the drum 15. As the cloth web 18 reaches a point where reversal ~ 7a -:., J
104;~S45 of curvature of the blanket 11 shortens the stretched condition of the first surface back to normal and beyond to a contracted condition in the compaction zone 16, the cloth web 18 is compelled to shorten also because the cloth web 18 is in frictional contact with the first surface 13 of the blanket 11.
This shortening action is a continuous one of microscopic amounts at any instant, but which can typically total 6 inches (15.24 cm.) or more per yard (91.44 cm.) depending on thickness and material of the blanket 11 with which the apparatus is equipped.
The cloth 18 is moist before it reaches and passes under the shoes 17, so that being soft and somewhat plastic the cloth web 18 contracts readily in frictional contact with the first surface 13 of the blanket. Removal of moisture by means of complete drying of the cloth web 18, by travel of the cloth web 18 over the heated drum 15, stabilizes and finishes the cloth web 18 in its contracted or preshrunk stage.
Difficulties arise in maintaining the heated shoes 17 relative to the inlet rol~er 12 and the heated drum 15 with the cloth web 18 passing thereunder. The shoes 17 must generally be heated electrically and they, as well as the blanket 11, are subjected to considerable wear. The shoes 17 inevitably offer resistance to the cloth web 18 passing thereunder, which resistance increases power requirements of the apparatus. The shoes 17 are mechanically complex and expen~ive to repair. Adjustments of the shoes 17 and replace-ments of the inlet roller 12 are necessary frequently; which adjustments ana replacements make operation of the apparatus complicated, thereby increasing operator skill requirements as well as aggravating probabilities of mistakes and presentiny inherent operational errors. It is necessary to change to a larger inlet roller as the blanket ~ears.
- 7b -~(~43S4~
The preferred embodiments of this invention serve to re-place prior art pressing shoes 17 shown in Fig. 6 by a pressing sheet 19 which takes the form of an apron 21 in the embodiment shown in Figs. 1-2 or the form of an endless ribbon 22 in the embodiment shown in Figs. 3-5.
By way of exampleg in the embodiment shown in Figs. 1-2, the cloth web 18 typ;cally may be fed via guide rollers 23 and draw rollers 24 through a moisturizing device 25 wherein the cloth web 18 has its moisture content adJusted by spraying with ste~ and/or water 0 from nozzles 26 and whence the moistened cloth web 18 is conducted and spread by known means (shown typicaLly as rollers 27) to an adjust-able feed roller 28 whence it enters a principal process unit (gene~
rally designated 29) of this invention. The foregoing preliminary ap-paratus is conventional. It is necessary only that moisture content of the cloth web 18 be in a range compatible with compressive pre-shrinking and usually that the cloth web be spread and relaxed pro-perly9 for example in a rail tenter with a feed such as a Marshall &
Williams nip type overfeeder. Variations on the preliminary appara-tus include partial drying from a hot air moisture content typically over hot cans9 delivery of the cloth web 18 from a rubber belt 55 (shown in Fig. 7) or other compressive preshrinkage unit such as one 56 for cloth knitted into tubes (shown in Fig. 8) or from other preliminary apparatus. Also the spreading as well as the relaxing could be attended to before the moisturizing, so long as the cloth web 18 reaches the principal processing unit 29 of this invention with a compatible moisture content, spread and usually relaxed. Woven cloth and warp knitted cloth .~
~0435~
are handled easily, but a knitted tube has to be slit and spread or flattened and spread wi~h all of the foregoing being accomplished by known apparatus and techniques.
The blanket ll (typically a felt endle~s blanket~ is led over the inlet roller 12 thereby having the first (initially outer) surface 13 of the blanket 11 stretched in the stretch zone 14. Then the inlet roller 12 and the blanket 11 are held ;n contact against the large diPmeter heated drum 15 around an arc of which the blanket 11 passes after Pea~ing the inlet roller 12. In transferring from the inlet roller 12 to the drum 159 the blanket 11 reverses its curvature so that the first (previously stretched) surface 13 of the blanket 11 changes to an inner contracted surface in a compaction zone 16~ The blanket 11 is very suitably made of woven wool or of needled polyester.
With eLimination of the heated shoes 17, it is feasible to employ blan-kets 11 of synthetic fibers which cannot be used with heated shoes 17 due to the fact that the temperature required (375F. to 450F. or 190.6C. to 232.2C.) would melt and destroy the blanket. However using pressing sheet 19, in the form of an apron 21 or an endless ribbon 22, with a maximum drum temperature of approximately 325F. or 162~8C.
permits safe use of the synthetic blanket~ Additionally such a maxi-mum drum temperature also permits us~ of blankets of other fibrous materials which likewise are longer lasting than wool.
The blanket 11 courses to the inlet roller 12 thence around an arc 31 of the drum 15~ thence via guide rollers 32 around an arc 33 of a heated drum 34 and via guide rollers 35 the blanket is recycled back to the inlet roller 12~
_ 9 _ ;~
lQ4;~54g In the embodiment of Figso 1-2, the processing sheet 19 ls in the form of a pressing apron 21 which is clamped at an outer end 36 outward of the inlet roller 12 relative to the drum 15. Held between an angle iron 37 and a bar 38 (as best seen in Fig. 2) the press~
ing apron 21 extends inward of the cloth web 18 through an area 39 and onto the arc 31 of the d D -15 where it is subJected to a dra~ force by the moving blanket:ll and that drag force presses the apron 21 onto the cloth web 18 over the inlet roller 12 and maintain the apron 21 on the cloth web 18 as the cloth web 18 tr~verses the area 39 and onto the arc 31 of the drum 15. The apron 21 extends onto the arc 31 of the drum 15 to an inner end 40 far enough to develop sufficient drag from the moving cloth web 18 to achieve the pressing force required~ By this expedient compressive preshrinking of the cloth web 18 is main-taineda without pop out and thereafter the cloth web 18 is dried totally in coursing the arc 31 on the drwm 15 and the dried cloth web is con ducted via an outlet roller 41 and guide rollers 42 typically to a plaiter 43 whereby the cloth web 18 is folded for deposition into a cart 44 for transfer to other processing steps or to conversion steps.
The shown plaiter 43 is operated by means of a crank 45. Obviously other means for re~oval and further processing or conversion of the cloth w;ll be apparent to skilled artisans.
AdJustments can include conventional controls and manipula-tions of the cloth web 18 in advance of the principal processing unit 29 of this invention, most particularly by adJustment of the feed roller 28 (as indicated by arrows 46) and also by movement of the inlet roller 12 (as indicated by arrows 47) relative to the dn ~ 15, The outer ~()4;~54~
end 36 of the apron 21 can be held in various posit~ons 48a, 48b, 48c, so that length of the arc 49 of the inlet roller 12 over which the apron 21 presses the cloth web 18 onto the inlet roller 12 can be predetermined. To achieve this adjustable positioning of the outer end 36 of the apron 21, a biased arcuate frame 51 preferably is ~ro-vided with a series of pin holes 52a, 52b, 52c on which pins connected to the angle iron 37 and the bar 38 holding the outer end 36 of the apron 21 can be set.
In the ~bodiment shown in Figs. 3-59 the sheet 19, rather than being in the fonm of an apron 21 as shown in Figs. 1-2, is in a fonm of an endless ribbon 22 which courses around the arc 31 of the drum 15, being driven thereby. The endless ribbon 22 courses outward from the drum 15 past the inlet roller 12 and it passes over a ribbon roller 53 mounted in the vicinity of the inlet roller 12. The ribbon roller 53 has an axis which is parallel to the axis of the inlet roller 12. The ribbon roller 53 axis is translatable axially relative to the adjustable inlet roller axis (as shown by arrows 54) to control slack in the endless ribbon 22 and also to vary incidence of the endless ribbon 22 onto the cloth web 18 on the inlet roller 12. As seen best i~ Fig. 59 the cloth web 18 has a substantially constant width and the endless ribbon 22 has a width at least as wide as that of the c~oth web.
The apron 21 and the endless ribbon 22 are made of fabric constituted of resin bonded glass fibers coated with polytetrafluoroethylene resin.
,~
1()4;~
Thicknesses in the order of 0.016 inches (0.041 cm.) have proven to be practical. Joining of the endless belt has been achievable by conventional techniques.
It will be understood by skilled artisans that the cloth web may be woven or it may be a warp knitted open web,!a slit knitted tube or a flattened knitted tube. The fibers may also be cellulosic or blends of cellulosic and man made fibers and such man made fibers may be thenmoplastic.
The apparatus for processing cloth in accordance with this invent~ion may be used in tandem advantageously with other compressive preshrinkage apparatus such as a conventional rubber belt compressive preshrinkage unit 55 shown in Fig. 7 which is preceded by a spreader 57 and comprises a heated drum 58, rollers and a moveable thick rubber belt 61. The apparatus for processing cloth in accordance with this invention is shown in Fig. 8 in tandem with a conventional preshrink-age unit for cloth 18a knitted in tubes. In Fig. ~ the knitted tube is spread and steamed in a moisturizing device 25a by means of steam jets 26a and it is the~ flattened and compacted by dual endless r,ubber belts 62 which run ~n rollers 63. After spreading--by rollers-64 the flattened tube is brought to feed roller 28 whence it is processed in accordance with this invention. By this expedient pop out of the knitted tube i~ compensated for and additional preshrinking can be achieved.
It will also be apparent to skilled artlsans that wide de-viations may be made rom the foregoing preferred embodiments, without departing from a main theme of invention set forth in claims which follow.
Claims (5)
1. An apparatus for processing a cloth web; the apparatus comprising in combination:
a heated drum having a drum axis, an inlet roller mounted adjacent to the drum and hav-ing an axis parallel to the drum axis, a blanket running around an arc of the inlet roller and thence around an arc of the drum in such a manner that a first (initially outer) surface of the blanket stretches in passing around the arc of the inlet roll-er and the first surface then contracts as it passes onto the arc of the drum, means for introducing the cloth web in a moistened condition onto the first surface of the blanket with the first surface carrying the cloth web in frictional contact therewith as at least a portion of said stretching and at least a portion of said contracting occurs:
the apparatus characterized by:
a smooth strong flexible sheet held in pressing engage-ment onto the cloth web on the arc of the inlet roller and extending inward of the cloth web onto the arc of the drum, the sheet being a fabric made of resin bonded glass fibers, the fabric coated with polytetrafluoroethylene resin.
a heated drum having a drum axis, an inlet roller mounted adjacent to the drum and hav-ing an axis parallel to the drum axis, a blanket running around an arc of the inlet roller and thence around an arc of the drum in such a manner that a first (initially outer) surface of the blanket stretches in passing around the arc of the inlet roll-er and the first surface then contracts as it passes onto the arc of the drum, means for introducing the cloth web in a moistened condition onto the first surface of the blanket with the first surface carrying the cloth web in frictional contact therewith as at least a portion of said stretching and at least a portion of said contracting occurs:
the apparatus characterized by:
a smooth strong flexible sheet held in pressing engage-ment onto the cloth web on the arc of the inlet roller and extending inward of the cloth web onto the arc of the drum, the sheet being a fabric made of resin bonded glass fibers, the fabric coated with polytetrafluoroethylene resin.
2. The apparatus of Claim 1 with the sheet being an apron having an outer end substantially parallel to the axis of the inlet roller and outward of the inlet roller relative to the drum and the apron having an inner end extending onto the arc of the drum.
3. The apparatus of Claim 1 with the ribbon being formed in an endless path substantial-ly encircling the drum, a ribbon roller being adapted to have the ribbon pass about an arc thereof and the ribbon roller mounted in the vicinity of the inlet roller and having a ribbon roller axis parallel to the inlet roller axis.
4. The apparatus of Claim 3 with means for translating the ribbon roller axis relative to the inlet roller axis for controll-ing incidence of the ribbon onto the cloth web.
5. A method for compressively preshrinking, stabilizing and finishing a cloth web: the method comprising steps as follows:
bringing the cloth web to a moisture content which does not exceed about 40% by weight, providing a heated drum having a drum axis, providing an inlet roller adjacent to the drum with the inlet roller having an inlet roller axis parallel to the drum axis, running a blanket around an arc of the inlet roller and thence around an arc of the drum in such a manner that a first (initially outer) surface of the blanket stretches in passing around the arc of the inlet roller and the first surface then contracts as it passes onto the arc of the drum, introducing the moist cloth web onto the first surface of the blanket with the first surface carrying the cloth web in frictional contact therewith as at least a portion of said stretching and at least a portion of said contracting occurs:
the method characterized by:
introducing a smooth strong flexible sheet held in pressing engagement onto the cloth web on the arc of the inlet roller and extending inward of the cloth web onto the arc of the drum, and making the sheet of a fabric constituted of resin bonded glass fibers and coated with polytetrafluoroethylene resin.
bringing the cloth web to a moisture content which does not exceed about 40% by weight, providing a heated drum having a drum axis, providing an inlet roller adjacent to the drum with the inlet roller having an inlet roller axis parallel to the drum axis, running a blanket around an arc of the inlet roller and thence around an arc of the drum in such a manner that a first (initially outer) surface of the blanket stretches in passing around the arc of the inlet roller and the first surface then contracts as it passes onto the arc of the drum, introducing the moist cloth web onto the first surface of the blanket with the first surface carrying the cloth web in frictional contact therewith as at least a portion of said stretching and at least a portion of said contracting occurs:
the method characterized by:
introducing a smooth strong flexible sheet held in pressing engagement onto the cloth web on the arc of the inlet roller and extending inward of the cloth web onto the arc of the drum, and making the sheet of a fabric constituted of resin bonded glass fibers and coated with polytetrafluoroethylene resin.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US59856275A | 1975-07-24 | 1975-07-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1043549A true CA1043549A (en) | 1978-12-05 |
Family
ID=24396070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA241,329A Expired CA1043549A (en) | 1975-07-24 | 1975-12-09 | Apparatus with flexible pressurizing sheet and related method for processing cloth, especially knitted cloth |
Country Status (42)
| Country | Link |
|---|---|
| US (1) | US4156955A (en) |
| JP (1) | JPS5917221B2 (en) |
| AR (1) | AR207271A1 (en) |
| AT (1) | AT351490B (en) |
| AU (1) | AU500594B2 (en) |
| BE (1) | BE837263A (en) |
| BG (1) | BG23757A3 (en) |
| BR (1) | BR7508234A (en) |
| CA (1) | CA1043549A (en) |
| CH (1) | CH606588A5 (en) |
| CS (1) | CS185584B2 (en) |
| CU (1) | CU21302A3 (en) |
| DD (1) | DD126142A5 (en) |
| DE (1) | DE2616423A1 (en) |
| DK (1) | DK562775A (en) |
| EG (1) | EG11980A (en) |
| ES (1) | ES444328A1 (en) |
| FI (1) | FI62147C (en) |
| FR (1) | FR2318968A1 (en) |
| GB (1) | GB1521069A (en) |
| GT (2) | GT197641718A (en) |
| HK (1) | HK40779A (en) |
| HU (1) | HU171422B (en) |
| IE (1) | IE41969B1 (en) |
| IL (1) | IL48584A (en) |
| IN (1) | IN155737B (en) |
| IT (1) | IT1052902B (en) |
| KE (1) | KE2961A (en) |
| MY (1) | MY8000031A (en) |
| NL (1) | NL7514582A (en) |
| NO (1) | NO754095L (en) |
| OA (1) | OA05320A (en) |
| PH (1) | PH17572A (en) |
| PL (1) | PL102194B1 (en) |
| PT (1) | PT64970B (en) |
| RO (1) | RO71191A (en) |
| SE (1) | SE416564B (en) |
| SU (1) | SU850018A3 (en) |
| TR (1) | TR19586A (en) |
| YU (1) | YU15676A (en) |
| ZA (1) | ZA757663B (en) |
| ZM (1) | ZM17275A1 (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54101942A (en) * | 1978-01-24 | 1979-08-10 | Baba Sangyo Kikai | Winding method of yarn beam |
| US4227288A (en) * | 1978-08-02 | 1980-10-14 | Compax Corp. | Compactor shoe construction |
| US4446606A (en) * | 1980-10-15 | 1984-05-08 | Cluett, Peabody & Co., Inc. | Continuous compressive preshrinking and drying method |
| GB2148342B (en) * | 1983-10-17 | 1987-07-08 | Cluett Peabody & Co Inc | Method and apparatus for compressive shrinkage of textile fabric |
| JPS6099067A (en) * | 1983-10-17 | 1985-06-01 | ウェスト・ポイント・ペパレル・インコーポレイテッド | Press shrinking method and apparatus of fiber cloth |
| US4575909A (en) * | 1984-03-07 | 1986-03-18 | Modern Globe, Inc. | Apparatus for treating fabric for shrinkage |
| JPH0330584Y2 (en) * | 1985-03-04 | 1991-06-27 | ||
| JPH07850B2 (en) * | 1986-03-11 | 1995-01-11 | 河本製機株式会社 | Method for drying filament yarn with warp glue and drying device with warp glue |
| ES2018698B3 (en) * | 1987-06-16 | 1991-05-01 | Santex Ag | PROCEDURE AND DEVICE TO SATIN AND SHRINK TEXTILE GENEROS |
| DE3734333C2 (en) * | 1987-10-10 | 1996-04-25 | Monforts Gmbh & Co A | Shrinking system for treating a textile fabric |
| IT1227244B (en) * | 1987-10-12 | 1991-03-27 | Monforts Gmbh & Co A | FINISHING AND WITHDRAWAL SYSTEM. |
| ATE61425T1 (en) * | 1988-07-18 | 1991-03-15 | Santex Ag | METHOD AND DEVICE FOR STRAIGHTENING AND SHRINKING. |
| IT1229928B (en) * | 1988-10-14 | 1991-09-16 | Sperotto Rimar Spa | APPARATUS TO CAUSE THE TIGHTENING OF A FABRIC. |
| US4922567A (en) * | 1989-06-28 | 1990-05-08 | J. E. Morgan Knitting Mills, Inc. | Treating fabrics |
| US5233733A (en) * | 1990-04-12 | 1993-08-10 | Rollin S.A. | Sheet material shrinkage apparatus |
| US5749400A (en) * | 1993-12-16 | 1998-05-12 | M. Hidalgo Beistequi, S.A. | Process for the manufacture of a figured elastic fabric made by the jacquard system |
| US5582892A (en) * | 1994-04-08 | 1996-12-10 | Minnesota Mining And Manufacturing Company | Dimensionally stable particle-loaded PTFE web |
| US5791029A (en) * | 1997-06-04 | 1998-08-11 | United States Supply Company, Inc. | Blanket construction for a compressive shrinkage apparatus |
| US6279211B1 (en) | 2000-05-04 | 2001-08-28 | Milliken & Company | Method for continuous conditioning of a blanket for a compressive shrinkage apparatus |
| US20040229538A1 (en) * | 2003-05-15 | 2004-11-18 | Love Franklin S. | Woven stretch fabrics and methods of making same |
| DE10327027A1 (en) * | 2003-06-16 | 2005-01-05 | Brückner Trockentechnik GmbH & Co. KG | Device for compacting textile webs |
| GB0317580D0 (en) * | 2003-07-26 | 2003-08-27 | Profit Internat Ltd | Apparatus for imparting stretch to fabrics |
| EP1657340A1 (en) * | 2004-11-15 | 2006-05-17 | Sperotto Rimar S.R.L. | Apparatus and method for shrinking textile substrates |
| ITUD20130012A1 (en) * | 2013-01-30 | 2014-07-31 | Lafer Spa | DEVICE FOR SELECTING A COMPACTION PRESSURE INTO A FABRIC COMPACTING MACHINE |
| IT201700038512A1 (en) * | 2017-04-07 | 2018-10-07 | Red Carpet S R L | A COMPACTING MACHINE |
| IT202100028952A1 (en) * | 2021-11-16 | 2023-05-16 | Lafer Spa | DEVICE FOR SELECTIVELY APPLYING COMPACTION PRESSURE IN A TISSUE COMPACTING MACHINE |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1861422A (en) * | 1930-04-18 | 1932-05-31 | Sanford L Cluett | Art of shrinking fabrics |
| US2199011A (en) * | 1938-05-07 | 1940-04-30 | Cluett Peabody & Co Inc | Cloth shrinking machine |
| BE494132A (en) * | 1949-03-18 | |||
| US2825117A (en) * | 1952-06-20 | 1958-03-04 | Bradford Dyers Ass Ltd | Method and apparatus for treating sheet material |
| FR1110734A (en) * | 1954-06-23 | 1956-02-16 | equipment for shrinking tissues lengthwise | |
| US3709721A (en) * | 1970-09-14 | 1973-01-09 | Pennwalt Corp | Heat and abrasion resistant textiles |
-
1975
- 1975-01-01 AR AR261602A patent/AR207271A1/en active
- 1975-12-01 IL IL48584A patent/IL48584A/en unknown
- 1975-12-02 IN IN2295/CAL/75A patent/IN155737B/en unknown
- 1975-12-04 NO NO754095A patent/NO754095L/no unknown
- 1975-12-08 ZA ZA757663A patent/ZA757663B/en unknown
- 1975-12-09 CA CA241,329A patent/CA1043549A/en not_active Expired
- 1975-12-11 DK DK562775A patent/DK562775A/en unknown
- 1975-12-12 BR BR7508234A patent/BR7508234A/en unknown
- 1975-12-12 CS CS7500008485A patent/CS185584B2/en unknown
- 1975-12-12 ZM ZM172/75A patent/ZM17275A1/en unknown
- 1975-12-12 IE IE2723/75A patent/IE41969B1/en unknown
- 1975-12-15 NL NL7514582A patent/NL7514582A/en unknown
- 1975-12-17 AU AU87620/75A patent/AU500594B2/en not_active Expired
- 1975-12-22 FR FR7539366A patent/FR2318968A1/en active Granted
- 1975-12-26 RO RO7584325A patent/RO71191A/en unknown
- 1975-12-31 FI FI753761A patent/FI62147C/en not_active IP Right Cessation
- 1975-12-31 GB GB53319/75A patent/GB1521069A/en not_active Expired
- 1975-12-31 BE BE163271A patent/BE837263A/en unknown
-
1976
- 1976-01-06 HU HU76CU00000151A patent/HU171422B/en unknown
- 1976-01-08 IT IT47555/76A patent/IT1052902B/en active
- 1976-01-12 JP JP51003127A patent/JPS5917221B2/en not_active Expired
- 1976-01-15 ES ES444328A patent/ES444328A1/en not_active Expired
- 1976-01-18 YU YU00156/76A patent/YU15676A/en unknown
- 1976-01-19 PH PH17989A patent/PH17572A/en unknown
- 1976-01-27 PL PL1976186844A patent/PL102194B1/en unknown
- 1976-01-30 BG BG7600032241A patent/BG23757A3/en unknown
- 1976-02-04 SE SE7601210A patent/SE416564B/en unknown
- 1976-02-09 EG EG65/76A patent/EG11980A/en active
- 1976-02-10 CU CU34456A patent/CU21302A3/en unknown
- 1976-02-24 SU SU762325454A patent/SU850018A3/en active
- 1976-03-03 TR TR19586A patent/TR19586A/en unknown
- 1976-04-05 PT PT64970A patent/PT64970B/en unknown
- 1976-04-14 DE DE19762616423 patent/DE2616423A1/en not_active Withdrawn
- 1976-05-03 OA OA55815A patent/OA05320A/en unknown
- 1976-06-04 GT GT197641718A patent/GT197641718A/en unknown
- 1976-06-04 GT GT197641716A patent/GT197641716A/en unknown
- 1976-07-07 AT AT497976A patent/AT351490B/en not_active IP Right Cessation
- 1976-07-15 CH CH909876A patent/CH606588A5/xx not_active IP Right Cessation
- 1976-07-22 DD DD194012A patent/DD126142A5/xx unknown
-
1977
- 1977-06-28 US US05/810,854 patent/US4156955A/en not_active Expired - Lifetime
-
1979
- 1979-05-15 KE KE2961A patent/KE2961A/en unknown
- 1979-06-21 HK HK407/79A patent/HK40779A/en unknown
-
1980
- 1980-12-30 MY MY31/80A patent/MY8000031A/en unknown
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